Brad Pitt embraced pregnant Marion Cotillard on the red carpet for the Allied premiere in London on Monday night.

The actor, who split from wife Angelina Jolie in September, wore a sharp black suit with a dark brown silk scarf as he stood next to his co-star.

The star's dark suit only did more to highlight his recent weight loss in the wake of his split from his estranged wife Angelina.

Brad and Marion, who have been touring the globe with the wartime movie, embraced on the red carpet while also joining the movie's team Robert Zemeckis, Lizzy Caplan, Steven Knight and Graham King at Odeon Leicester Square.

Brad Pitt and Marion Cotillard (Image: Getty)

Brad Pitt and Marion Cotillard (Image: FilmMagic)

Marion wore a stunning black midi-dress with a billowing train.

Brad previously spoke about the movie in Paris, as he said: "This one was more a universal story about ... love, I would say trust.

“Trust in the person you love, trust in your intuition, trusting even the job you are doing, the mission itself, and that's what I most liked about the script. That's what I focused on really".

Brad Pitt and Marion Cotillard (Image: Getty)

Brad Pitt and Marion Cotillard (Image: Getty)

While Brad and his movie crew celebrated the premiere, just miles down the road his ex-wife Jennifer Aniston was in town for her own movie.

On Monday evening the 47-year-old appeared on the flagship BBC programme to talk about her new movie, Office Christmas Party.

The Hollywood star - who played Rachel Green in the hit US sitcom from 1994–2004 - appeared alongside the film's director's Will Speck and Josh Gordon, as they shared the studio with some disabled kids to celebrate the success of Children in Need.

It wasn't long before BBC presenters Matt Baker and Alex Jones were asking about her new character.

After comparing Aniston 's new movie character (Carol) to her Horrible Bosses and Friends roles, Gordon said she was "a little bit of both" - before the actress belted out a pre-watershed remark that left the BBC presenting duo flustered.

Aniston said her role was basically the same, only "just without the sex toys."

While Alex Jones laughed, her co-star tried to moves things on, saying: "There we are, is that a fare assessment?"

"Yeah, that is a good takeaway," the star added.

Viewers were quick to react, with one saying that it left producers in a panic.